20631062 has 4 divisors (see below), whose sum is σ = 30946596. Its totient is φ = 10315530.

The previous prime is 20631043. The next prime is 20631097. The reversal of 20631062 is 26013602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5157764 + ... + 5157767.

It is an arithmetic number, because the mean of its divisors is an integer number (7736649).

Almost surely, 2^20631062 is an apocalyptic number.

20631062 is a deficient number, since it is larger than the sum of its proper divisors (10315534).

20631062 is a wasteful number, since it uses less digits than its factorization.

20631062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10315533.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20631062 is about 4542.1428863478. The cubic root of 20631062 is about 274.2671927856.

Adding to 20631062 its reverse (26013602), we get a palindrome (46644664).

It can be divided in two parts, 2063 and 1062, that added together give a 5-th power (3125 = 5⁵).

The spelling of 20631062 in words is "twenty million, six hundred thirty-one thousand, sixty-two".